 | United States. National Aeronautics and Space Administration - 1984 - 770 páginas
...for stationkeeping and attitude control. A number of orbital locations are possible, including the L, libration point of the Earth-Moon system, a point...structural simplicity and longevity made possible by the weightlessness and benign environment. Further studies are needed of the spacebased SETI and of the... | |
 | United States. National Aeronautics and Space Administration - 1984 - 770 páginas
...statlonkeeping and attitude control. A number of orbital locations are possible, including the L, libratlon point of the Earth-Moon system, a point at lunar distance...structural simplicity and longevity made possible by the weightlessness and benign environment. Further studies are needed of the spacebased SETI and of the... | |
 | United States. National Aeronautics and Space Administration - 1985 - 600 páginas
...for stationkeeping and attitude control. A number of orbital locations are possible, including the L libration point of the Earth-Moon system, a point...structural simplicity and longevity made possible by the weightlessness and benign environment. Further studies are needed of the space-based SETI and the alternatives... | |
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L, libration point of the Earth-Moon system, a point at lunar distance but on the opposite side of the Earth from the Moon. Among several desirable features of an orbiting antenna system are the complete sky coverage, the ability to track a given star... 